Microarray profiling of microRNAs reveals frequent coexpression with neighboring miRNAs and host genes
TLDR
The results show that proximal pairs of miRNAs are generally coexpressed, and that in situ analyses of host gene expression can be used to probe the spatial and temporal localization of intronic mi RNAs.Abstract:
MicroRNAs (miRNAs) are short endogenous RNAs known to post-transcriptionally repress gene expression in animals and plants. A microarray profiling survey revealed the expression patterns of 175 human miRNAs across 24 different human organs. Our results show that proximal pairs of miRNAs are generally coexpressed. In addition, an abrupt transition in the correlation between pairs of expressed miRNAs occurs at a distance of 50 kb, implying that miRNAs separated by <50 kb typically derive from a common transcript. Some microRNAs are within the introns of host genes. Intronic miRNAs are usually coordinately expressed with their host gene mRNA, implying that they also generally derive from a common transcript, and that in situ analyses of host gene expression can be used to probe the spatial and temporal localization of intronic miRNAs.read more
Citations
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Oncomirs : microRNAs with a role in cancer
TL;DR: I MicroRNAs (miRNAs) are an abundant class of small non-protein-coding RNAs that function as negative gene regulators as discussed by the authors, and have been shown to repress the expression of important cancer-related genes and might prove useful in the diagnosis and treatment of cancer.
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Oncomirs — microRNAs with a role in cancer
TL;DR: Evidence has shown that miRNA mutations or mis-expression correlate with various human cancers and indicates that miRNAs can function as tumour suppressors and oncogenes.
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A mammalian microRNA expression atlas based on small RNA library sequencing.
Pablo Landgraf,Mirabela Rusu,Robert L. Sheridan,Alain Sewer,Alain Sewer,Nicola Iovino,Alexei A. Aravin,Sébastien Pfeffer,Amanda J. Rice,Alice O. Kamphorst,Markus Landthaler,Carolina Lin,Nicholas D. Socci,Leandro C. Hermida,Valerio Fulci,Sabina Chiaretti,Robin Foà,Julia Schliwka,Uta Fuchs,Astrid Novosel,Roman-Ulrich Müller,Roman-Ulrich Müller,Bernhard Schermer,Ute Bissels,Jason M. Inman,Quang Phan,Minchen Chien,David B. Weir,Ruchi Choksi,Gabriella De Vita,Daniela Frezzetti,Hans Ingo Trompeter,Veit Hornung,Grace Teng,Gunther Hartmann,Miklós Palkovits,Roberto Di Lauro,Peter Wernet,Giuseppe Macino,Charles E. Rogler,James W. Nagle,Jingyue Ju,F. Nina Papavasiliou,Thomas Benzing,Peter Lichter,Wayne Tam,Michael J. Brownstein,Andreas Bosio,Arndt Borkhardt,James J. Russo,Chris Sander,Mihaela Zavolan,Mihaela Zavolan,Thomas Tuschl +53 more
TL;DR: A relatively small set of miRNAs, many of which are ubiquitously expressed, account for most of the differences in miRNA profiles between cell lineages and tissues.
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The miR-200 family and miR-205 regulate epithelial to mesenchymal transition by targeting ZEB1 and SIP1.
Philip A. Gregory,Andrew G. Bert,Emily L. Paterson,Simon C. Barry,Anna Tsykin,Gelareh Farshid,Mathew A. Vadas,Mathew A. Vadas,Yeesim Khew-Goodall,Gregory J. Goodall +9 more
TL;DR: It is found that all five members of the microRNA-200 family were markedly downregulated in cells that had undergone EMT in response to transforming growth factor (TGF)-β or to ectopic expression of the protein tyrosine phosphatase Pez, suggesting that downregulation of themicroRNAs may be an important step in tumour progression.
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Unique microRNA molecular profiles in lung cancer diagnosis and prognosis
Nozomu Yanaihara,Natasha J. Caplen,Elise D. Bowman,Masahiro Seike,Kensuke Kumamoto,Ming Yi,Robert M. Stephens,Aikou Okamoto,Jun Yokota,Tadao Tanaka,George A. Calin,Chang Gong Liu,Carlo M. Croce,Curtis C. Harris +13 more
TL;DR: Results indicate that miRNA expression profiles are diagnostic and prognostic markers of lung cancer.
References
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